correctionist

English

Etymology

correction +‎ -ist

Noun

correctionist (plural correctionists)

1. One who corrects something.
   • 1941, Charlotte G. Wells, The Correction of Foreign Accent, page 34:

     The correction of barbaralalia (foreign accent) is in the strictest sense speech re-education, since the speech correctionist is aiding the foreign speaker to change one set of speech habits for another.